A method for recovering residual ore in a shallow hole room and pillar method stope

A recovery method and shallow hole technology, applied in surface mining, mining equipment, underground mining, etc., can solve the problems of poor mining safety and difficult mining, eliminate hidden safety hazards in empty areas, reduce the amount of cutting engineering, and improve output. The effect of mineral grade

Active Publication Date: 2021-06-22
NANHUA UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

[0005] Aiming at the problem of the above-mentioned type of shallow hole room and pillar method stope residual ore recovery, the present invention discloses a shallow hole room and pillar method stope residual ore recovery method, which can effectively solve the poor safety and difficulty of mining by the conventional method of this type of ore body the puzzle

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  • A method for recovering residual ore in a shallow hole room and pillar method stope
  • A method for recovering residual ore in a shallow hole room and pillar method stope
  • A method for recovering residual ore in a shallow hole room and pillar method stope

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Embodiment 1

[0039] From Figure 1 - Figure 8 It can be seen that the recovery method of a shallow hole column column method according to the present invention includes the following steps:

[0040] (Step 1), use a three-dimensional laser scanner to scan the old vacuum area 4 form of the original housing column method, and the mineral span s = 8m is measured, and the old vacuum area is calculated by 4 area and volume of the old vacuum area. 4 average thickness h = 10m;

[0041] (Step 2), from the lower ramp construction contact in the mineral bottom plate surrounding rock, then travel along the mineral to the construction, the pulse transportation lane 7, the lower plate is 3m × 3m, and the pulse is 3m × 3m. Since the lower coil transporting lane 7, the distance is taken along the direction of each 16m, which is inclined to the mountain 8 to the upper stage, inclined the mountain 8 section specification 3m × 3M, inclined up the mountain 8 located in the old vacuum area 4 mineral rooms On the ce...

Embodiment 2

[0049] The method of recovery of a shallow house column method according to the present invention includes the following steps:

[0050] (Step 1), use a three-dimensional laser scanner to scan the old vacuum area 4 form of the original housing column method, and the mineral span s = 10m is measured, and the old vacuum area is calculated by 4 area and volume of the old vacuum area. 4 average thickness h = 8m;

[0051] (Step 2), from the lower ramp construction contact in the mineral bottom plate surrounding rock, then travel along the mineral to the construction, the pulse transportation lane 7, the lower plate is 3m × 3m, and the pulse is 3m × 3m. Since the lower coiled transportation lane 7 takes a distance from the direction of the upper mountain 8 to the upper stage, the upper mountain 8 is inclined to the mountain 8 section specification is 3m × 3m, and the mountain 8 is located in the old vacuum area 4 two miners. On the center, and use the people's line of Feng Ye 9 and Shan...

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Abstract

The invention provides a shallow-hole room-and-pillar method stope residual ore recovery method, which is suitable for the recovery of residual ore from a gently inclined medium-thick-thick large ore body with high ore grade, good value and good rock stability. The bottom structure of the ore hopper of the scraper is arranged in the surrounding rock of the footwall, and the lower ore body is mined first, and the lower empty space is filled, and then the upper ore body is mined. When mining the lower layer of ore body, the upper old goaf is used as the free surface and compensation space, and the fan-shaped medium-deep hole is used to caving ore, and the ore is partially extracted from the bottom structure of the scraper, and then the point column is used to layer upwards The filling method or the shallow hole room and pillar method is used to mine the upper ore body and fill it to the top. Compared with the prior art, the invention has the advantages of safe mining operation, large stope production capacity and low cost.

Description

Technical field [0001] The present invention relates to the field of underground mine mining, and more particularly to a shallow house column method for recovery method, which is suitable for thick mining housing column, a thick mineral housing, ambigumeric, a high value of ore, and has a good value of good value and a stable mineral rock. Recycle. Background technique [0002] Shallow House Column Law Suitable for slow-tilting thin miners, the method divides the ore into a mine block, and is organized in units of mineral blocks. When the mine block retracted, it was divided into several deposit rooms. When the mine retracted, the top plate management and ground control were reserved every other distance between adjacent miners. The use of the mineral method is that the stability of the ore body and the surrounding rock is medium and stable, and the ore body is less than or equal to 30 °, the mineral thickness is ≤ 8m. If the gauge is more than 8m, the difficulty of returning wil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21C41/22E21F15/00
CPCE21C41/22E21F15/00E21F15/005
Inventor 戴兵陈英贺桂成张志军章求才
Owner NANHUA UNIV
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